Why does the genealogy of Jesus in Matthew (NASB) omit Admin of Luke 3:33 (NASB)?

I’m comparing both Matthew and Luke’s genealogy of Jesus. Matthew wrote this: Ram was the father of Amminadab, Amminadab the father of Nahshon… – Mat 1:3 (NASB) And Luke wrote this: the son of Amminadab, the son of Admin, th…